homework

How do you greet in your life? Is it different for different people?
How so and why? Do you touch people when you talk to them? why? or why not?

I think it will change depends on situation or people.
forexample, when i meet my friends, i greet them "yahho-!!" something like that. and i will wave my hand. On the other hand, when i meet people like a teacher or stranger, i say "konnichiha" and bow.

I dont touch people when i talk to stranger or person who is i dont know so much.
if i talk with my friends or families, i touch their hand or something!
But i never hug!!!

Buddhism!!!

Hello!
I was very interested in Mr.Tutumi's story on last class.
I always say "Itadakimasu" when i eat something.
I thought all most all Japanese people say "Itadakimasu" as if it were air.
To my surprise, Today's elementary school kids doesn't say it!!!